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110 to 117?
  #1  
Old 07-21-2008, 06:44 PM
COVSpringer08
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Default 110 to 117?

looking to fix my leaking head gaskets with axtells cylinders, what are your thoughts about going to 4.125 bore..to achieve the 117? is it worth the extra money to bore the cases and do the timken bearing upgrade at this time, or just stick with the 4.00 bore....
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Old 07-22-2008, 04:35 PM
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Only worth doing if you were to also do all the others things such as ported heads, high comp pistons (with kit), appropriate cams, throttle body, etc.
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  #3  
Old 07-22-2008, 05:42 PM
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Heads are going to Baisley 100% anyway 110 or 117.. Would the T-man TR-625 cams be good or need more( something better )? Not sure on TB size for a 117? I'm looking at going with D&D Boarzilla 2-1.

Just thinking if the motor is down and going to buy the Axtells cly. Why not go bigger I know the case will have to bored. Then at this time should do the bearing upgrade and ship the crank to darkhorse?
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Old 07-23-2008, 02:18 PM
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All the above! I would consider the TM650's. The Wood Auto TW9F is another.
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  #5  
Old 07-24-2008, 04:26 AM
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T-man has 3 new cams one is TR-662
23/45 lift .660 dur 248 CL 101 TDC .215
49/21 lift .660 dur 250 CL 104 TDC .198

What compression would you go with? With the 117 would you go with 54mm or bigger on TB?
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Old 07-24-2008, 08:46 AM
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Similar to TR's 590. The 662-1 with added lift should work well with good flowing heads. The 662-2 is similar to the 650 and may be a new design to help with noise reduction, though with much less overlap. The choice will depend on the flow numbers, compression ratio and desired hp/tq peaks.

The 662-1 can stand up to 10.5 compression/pump gas.

Throttle body size will also depend on above but good news is you can be slightly large with no ill affect (low end tq loss) on an EFI bike. Our t-body can support 150hp with a 48 venturi but most end up with a 52. 58 and 60's are all the rage these days but most heads/exhaust/cams can not flow enough to support bodies that size. It is also all about the manifolds ability to flow. The SE 58 does not flow anywhere near our 44 because the restriction is in the manifold. I.E., a larger throttle plate will not add air after the point you've maxed out the manifold flow. Our new production version manifold is scheduled for flow test verification today and we should have numbers by tuesday. The Zippers 54 flows very well and should support your proposed motor combo.
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  #7  
Old 08-24-2008, 06:24 AM
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Mike

How are your TB coming long?
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  #8  
Old 08-28-2008, 08:23 AM
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Worlds slowest product developement!!!!!! We have retained a very good machine shop that will hopefully eleminate many of the conflicts with subcontracting.

On a positive note, the ETC prototype will be delivered this friday. Once finalized, our new machinist will concentrate on the earlier versions (non ETC). Should have assembly flow numbers sometime next week.
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